We have two new small male rescue dogs who spent a very long time in the shelters. They get along with each other fine, but compete for our attention. They don't have mean bones in their little bodies. completely non-threatening, but one of them lunges at us for love, physically hurting us. Nothing calms him, and if we use a firm voice to correct him, he cowers and pees all over and rolls around in it. Then we don't want to touch him! We would never be mean to a dog, just a firm voice frightens him. Someone adopted him once but returned him. We would never return him and are willing to do whatever we have to in order to calm and reassure him. The only thing I have found that makes him stop jumping all over us and lunging at us is a squirt gun, which in turn makes he pee all over himself. Our other rescue dog has become more like him, sigh.